body {
    background: #f8f9fa;
}
h2 {
    letter-spacing: 2px;
    color: #2c3e50;
}
.card {
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
    border-radius: 8px;
    margin-bottom: 1rem;
    border: 1px solid rgba(0,0,0,0.08);
}
.card-header {
    background: #f5f6fa;
    font-weight: 500;
    font-size: 1rem;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid rgba(0,0,0,0.08);
}
.form-label {
    font-size: 0.95rem;
    color: #555;
    margin-bottom: 0.5rem;
}
#theme-input, #style-other {
    font-size: 1rem;
    border: 1px solid #ced4da;
    padding: 0.5rem;
}
#prompt-textarea {
    font-size: 1.05rem;
    resize: vertical;
    min-height: 200px;
    border: 1.5px solid #e0e0e0;
    border-radius: 6px;
    padding: 0.75rem;
    line-height: 1.5;
}
.btn {
    min-width: 90px;
    padding: 0.5rem 1rem;
    font-weight: 500;
}
#btn-generate {
    min-width: 120px;
}
#copy-feedback {
    font-size: 0.95rem;
    vertical-align: middle;
    font-weight: 500;
}
.text-content {
    min-height: 60px;
    border-left: 3px solid #e0e0e0;
    padding: 0.5rem 1rem;
    background: #f8f9fa;
    border-radius: 0 4px 4px 0;
    font-size: 1.05rem;
}
.theme-display {
    font-size: 1.1rem;
    color: #dc3545;
}
.form-text {
    color: #6c757d;
    font-size: 0.85rem;
    margin-top: 0.25rem;
}
.form-check-label {
    font-size: 0.95rem;
}
@media (max-width: 991px) {
    .col-4, .col-8 {
        flex: 100%;
        max-width: 100%;
    }
}
